posix/tst-execv2.c

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <unistd.h>
   4 #include <sys/stat.h>
   5
   6
   7 static void prepare (int argc, char *argv[]);
   8 static int do_test (void);
   9 #define PREPARE(argc, argv) prepare (argc, argv)
  10 #define TEST_FUNCTION do_test ()
  11 #include "../test-skeleton.c"
  12
  13
  14 static char *copy;
  15
  16 static void
  17 prepare (int argc, char *argv[])
  18 {
  19   char *buf;
  20   int off;
  21   asprintf (&buf, "cp %s %n%s-copy", argv[0], &off, argv[0]);
  22   if (buf == NULL)
  23     {
  24       puts ("asprintf  failed");
  25       exit (1);
  26     }
  27   if (system (buf) != 0)
  28     {
  29       puts ("system  failed");
  30       exit (1);
  31     }
  32
  33   /* Make it not executable.  */
  34   copy = buf + off;
  35   if (chmod (copy, 0666) != 0)
  36     {
  37       puts ("chmod  failed");
  38       exit (1);
  39     }
  40
  41   add_temp_file (copy);
  42 }
  43
  44
  45 static int
  46 do_test (void)
  47 {
  48   char *argv[] = { copy, NULL };
  49
  50   errno = 0;
  51   execv (copy, argv);
  52
  53   if (errno != EACCES)
  54     {
  55       printf ("errno = %d (%m), expected EACCES\n", errno);
  56       return 1;
  57     }
  58
  59   return 0;
  60 }